1# $FreeBSD$ 2 3.-include <local.sysdir.mk> 4 5# Search for kernel source tree in standard places. 6.if !defined(SYSDIR) 7.for _dir in ${SRCTOP:D${SRCTOP}/sys} \ 8 ${.CURDIR}/../.. ${.CURDIR}/../../.. ${.CURDIR}/../../../.. \ 9 ${.CURDIR}/../../../../.. /sys /usr/src/sys 10.if !defined(SYSDIR) && exists(${_dir}/kern/) && exists(${_dir}/conf/kmod.mk) 11SYSDIR= ${_dir:tA} 12.endif 13.endfor 14.endif 15.if !defined(SYSDIR) || !exists(${SYSDIR}/kern/) || \ 16 !exists(${SYSDIR}/conf/kmod.mk) 17.error Unable to locate the kernel source tree. Set SYSDIR to override. 18.endif 19